CVE-2025-57939 is a Missing Authorization vulnerability (CWE-862) found in the Blocksera Image Hover Effects – Elementor Addon, a plugin used to enhance image hover effects within the Elementor page builder environment. This vulnerability arises due to improperly configured access control mechanisms, allowing unauthorized users to perform actions or access functionalities that should be restricted. Specifically, the flaw exists in versions up to 1.4.4 of the addon. The CVSS 3.1 base score is 5.3, indicating a medium severity level. The vector string (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N) reveals that the vulnerability is remotely exploitable over the network without requiring any privileges or user interaction. The impact is limited to integrity, meaning unauthorized modification or manipulation of data or settings is possible, but confidentiality and availability are not directly affected. No known exploits are currently in the wild, and no patches have been linked yet. This vulnerability is significant because Elementor is a widely used WordPress page builder, and Blocksera’s addon extends its functionality. Missing authorization can lead to unauthorized changes in website content or behavior, potentially undermining site integrity and user trust.

For European organizations, especially those relying on WordPress websites with Elementor and the Blocksera Image Hover Effects addon installed, this vulnerability poses a risk of unauthorized content manipulation. This could lead to defacement, insertion of misleading information, or unauthorized changes to visual elements that might affect brand reputation and user trust. While the vulnerability does not directly compromise data confidentiality or availability, integrity violations can still have severe consequences, including regulatory compliance issues under GDPR if manipulated content leads to misinformation or harms users. E-commerce sites, government portals, and media outlets using this addon are particularly at risk. The ease of exploitation (no authentication or user interaction required) increases the threat level, potentially enabling automated attacks. However, the lack of known exploits and patches suggests the threat is currently moderate but could escalate if weaponized.

European organizations should immediately audit their WordPress installations to identify the presence of the Blocksera Image Hover Effects – Elementor Addon, particularly versions up to 1.4.4. Until an official patch is released, administrators should consider disabling or removing the addon to eliminate exposure. Implementing strict web application firewall (WAF) rules to monitor and block suspicious requests targeting the addon’s endpoints can reduce risk. Additionally, organizations should enforce the principle of least privilege for WordPress user roles to limit potential damage from any unauthorized actions. Regular monitoring of website integrity and logs for unusual changes or access patterns is critical. Organizations should subscribe to vendor and security advisories for timely patch releases and apply updates promptly once available. Employing multi-factor authentication for WordPress admin accounts and limiting administrative access to trusted IP ranges can further reduce exploitation risk.